Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/243064
Type: Artigo de periódico
Title: Photoinduced Electrical Response In Quantum Dots/graphene Hybrid Structure
Author: Gromova
Yu.; Alaferdov
A.; Rackauskas
S.; Ermakov
V.; Orlova
A.; Maslov
V.; Moshkalev
S.; Baranov
A.; Fedorov
A.
Abstract: We report on the enhancement of the electrical photoresponse in a hybrid structure composed of multi-layer graphene flakes covered by a layer of CdSe/ZnS quantum dots (QDs) and placed between metal electrodes. The rate of the photoexcitation energy transfer from QDs to graphene, (0.5-2) x 10(9) s(-1) which controls the photoelectrical response of the structure, was found from the analysis of photoluminescence intensities and decay times for QDs in solution, on a bare glass substrate and on the surface of multilayer graphene, and in the presence of ammonia vapors. (C) 2015 AIP Publishing LLC.
Subject: Layered Graphene/quantum Dots
Liquid-phase Exfoliation
Photodetectors
Nanocrystals
Graphite
Cells
Films
Country: MELVILLE
Editor: AMER INST PHYSICS
Rights: embargo
Identifier DOI: 10.1063/1.4929970
Address: http://scitation.aip.org/content/aip/journal/jap/118/10/10.1063/1.4929970
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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